Protoma is a genus of sea snails, marine gastropod mollusks in the family Turritellidae. Species Extant species within the genus Protoma include: Protoma knockeri Baird, 1870 Species brought into synonymy Protoma capensis (Krauss, 1848): synonym of Turritella capensis (Krauss, 1848) Extinct species † Protoma cathedralis Brongniart 1856 † Protoma deshayesi d'Archiac 1850 † Protoma renevieri d'Archiac and Haime 1854 † Protoma retrodilatatum Vredenburg 1928 † Protoma rotifera Deshayes 1832 † Protoma sindiense Vredenburg 1928 † Protoma subrenevieri Vredenburg 1928 Fossils of sea snails within this genus have been found in sediments of Europe, South Africa, India, and Pakistan from Oligocene to Quaternary (age range: 28.4 to 0.012 million years ago). References Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp. Branch, G.M. et al. (2002). Two Oceans. 5th impression. David Philip, Cate Town & Johannesburg Protoma Monotypic gastropod genera Extant Oligocene first appearances